#397D8D#397D8D

#397D8D is a mid, moderate cyan. Relative luminance 0.175; OKLCH L 55.2% C 0.072 H 215.4°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#397D8D
RGB	rgb(57, 125, 141)
HSL	hsl(191, 42%, 39%)
HSV	hsv(191, 60%, 55%)
CMYK	cmyk(59.6%, 11.3%, 0%, 44.7%)
CIE-LAB	lab(48.83, -16.49, -15.15)
CIE-LCH	lch(48.83, 22.39, 222.58°)
OKLab	oklab(55.24% -0.0591 -0.042)
OKLCH	oklch(55.24% 0.072 215.4)
XYZ	xyz(13.8268, 17.4588, 27.8354)
Luminance	0.1746 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397D8D #8D4939

analogous

#398D73 #397D8D #39538D

triadic

#397D8D #8D397D #7D8D39

tetradic

#397D8D #73398D #8D4939 #538D39

square

#397D8D #73398D #8D4939 #538D39

split-complementary

#397D8D #8D3953 #8D7339

monochromatic

#163036 #275661 #397D8D #4CA3B7 #78B9C8

Accessibility & contrast

On white

4.67

#397D8D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#397D8D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #397D8D

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397D8D	#FFFFFF	#000000	##FFFFFF
##397D8D	1.00	4.67	4.49	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#72798E

Deuteranopia (green-blind)

#65708D

Tritanopia (blue-blind)

#008382

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #397d8d;
/* rgb */ color: rgb(57, 125, 141);
/* oklch */ color: oklch(55.2% 0.072 215.4);

Tailwind

colors: {
  custom: {
    50: '#78a2ae',
    500: '#397d8d',
    950: '#000000',
  },
}

SCSS

$custom: #397d8d;
$custom-light: #78a2ae;
$custom-dark: #000000;

JSON

{
  "hex": "#397d8d",
  "rgb": {
    "r": 57,
    "g": 125,
    "b": 141
  },
  "hsl": {
    "h": 191.429,
    "s": 42.424,
    "l": 38.824
  },
  "oklch": {
    "l": 0.55242,
    "c": 0.07248,
    "h": 215.4
  },
  "luminance": 0.1746
}

Semantic roles & 50–950 ramp

primary

#397D8D

secondary

#B27D70

accent

#6D56D2

background

#F7FAFA

surface

#EEF3F4

border

#C9CDCE

text

#090F10

muted

#7B7F7F

Preview Lab

Preview with #397D8D

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →